Your Query returns 41 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
pgk1D101554844
PGK1M915984952
pgk1AL0237804896SPBC14F5.04c   
PGK1X597204932
PGK1AF2475583702
PGK1U251805476
PGK1AF1084512850
PGK1AY0297752769
PGK1AY2882964922
PGK1AH0029389606311800
PGK1M119589606311800
PGK1M119599606311800
PGK1M119609606311800
PGK1M119619606311800
PGK1M119629606311800
PGK1M119639606311800
PGK1M119649606311800
PGK1M119659606311800
PGK1M119669606311800
PGK1M119679606311800
PGK1M119689606311800
PGK1M340179606311800
Pgk1NM_00882810090Pgk-1    311800
PGK1S754769606311800
Pgk1NW_04804310116
Pgk1NM_05329110116Pgk   
PGK1M605819606311800
PGK1AY4081869606311800
PGK1AY4081879598
PGK1AY40818810090311800
PGK1AH0029379606311800
PGK1L001599606311800
PGK1L001609606311800
PGK1NM_0002919606PGKA    311800
pgk1M1566810090311800
Pgk1NT_03971110090311800
Pgk1BC06316110116Pgk   
pgk1NC_0034234896SPBC14F5.04c   
PGK1AY4368199823
PGK1NT_0795749606311800
PGK1NC_0011354932

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002